Modified chemical method for determination of Cu+ ions in some Cu containing phosphate glasses and effect of composition on the Cu2+/Cu-(tot) ratio

Authors
Morsi, MM Metwalli, EES Mohamed, AA
Citation
Mm. Morsi et al., Modified chemical method for determination of Cu+ ions in some Cu containing phosphate glasses and effect of composition on the Cu2+/Cu-(tot) ratio, PHYS C GLAS, 40(6), 1999, pp. 314-318
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
PHYSICS AND CHEMISTRY OF GLASSES
ISSN journal
00319090 → ACNP
Volume
40
Issue
6
Year of publication
1999
Pages
314 - 318
Database
ISI
SICI code
0031-9090(199912)40:6<314:MCMFDO>2.0.ZU;2-T
Abstract
A modified chemical method for the determination of cuprous ions in some co pper phosphate glasses with high accuracy has been developed The error is f ound not to exceed 1-2%. In binary copper phosphate glasses the Cu2+/Cu-tot ratio has been found to increase with increasing CuO content from 40 to 50 mol%, then decrease with further increase of CuO from 50 to 55 mol%. Intro duction of PbO, ZnO, CnO, MgO, Li2O, Na2O and K2O at the expense of CuO in the base 50CuO.50P(2)O(5) glass clearly affect the Cu2+/Cu-tot ratios. Expl anation was given on the basis of the polarisability of oxygen ions and bas icity of the glasses.